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107
common/js/map/openMap.js
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107
common/js/map/openMap.js
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import TransformCoordinate from './transformCoordinate.js'
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function openMapByDefault(latitude, longitude, name) {
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uni.openLocation({
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latitude: latitude,
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longitude: longitude,
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name: name,
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fail: (e) => {
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uni.showModal({
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content: '打开地图失败，请稍后重试'
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})
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},
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})
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}
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function openMapByAndroid(latitude, longitude, name) {
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let url = ''; // 回调地址
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let identity = ''; // 程序名称
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if (plus.runtime.isApplicationExist({
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pname: 'com.baidu.BaiduMap'
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})) {
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url =
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`baidumap://map/marker?location=${latitude},${longitude}&title=${name}&coord_type=gcj02&src=andr.baidu.openAPIdemo`
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identity = 'com.baidu.BaiduMap'
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openURL(url, identity)
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} else if (plus.runtime.isApplicationExist({
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pname: 'com.autonavi.minimap'
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})) { // 高德
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url = `androidamap://viewMap?sourceApplication=appname&poiname=${name}&lat=${latitude}&lon=${longitude}&dev=0`
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identity = 'com.autonavi.minimap'
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openURL(url, identity)
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} else {
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openMapByDefault(latitude, longitude, name)
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}
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}
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function openMapByIos(latitude, longitude, name) {
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let url = ''; // 回调地址
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let errorCB = ''; // url失败的回调地址
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let identity = ''; // 程序名称
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if (plus.runtime.isApplicationExist({
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action: 'baidumap://'
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})) {
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url =
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`baidumap://map/marker?location=${latitude},${longitude}&title=${name}&content=${name}&src=ios.baidu.openAPIdemo&coord_type=gcj02`;
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openURL(url, identity)
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} else if (plus.runtime.isApplicationExist({
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action: 'iosamap://'
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})) { // 高德
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url = `iosamap://viewMap?sourceApplication=applicationName&poiname=${name}&lat=${latitude}&lon=${longitude}&dev=0`
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openURL(url, identity)
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} else {
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openMapByDefault(latitude, longitude, name)
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}
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}
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function openURL(url, identity) {
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let newurl = encodeURI(url);
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plus.runtime.openURL(newurl, function(res) {
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uni.showModal({
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content: res.message
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})
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}, identity);
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}
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function getCoordByType(longitude, latitude, coord_type) {
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switch (coord_type) {
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case 'gcj02':
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return [longitude, latitude]
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break;
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case 'bd09':
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return TransformCoordinate.bd09togcj02(longitude, latitude)
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break;
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case 'wgs84':
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return TransformCoordinate.wgs84togcj02(longitude, latitude)
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break;
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default:
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return [longitude, latitude]
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break;
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}
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}
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export default {
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/* 打开地图 */
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openMap(latitude, longitude, name, coord_type = 'gcj02') {
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let arr = getCoordByType(longitude, latitude, coord_type)
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// #ifdef APP-PLUS
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switch (uni.getSystemInfoSync().platform) {
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case 'android':
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console.log('运行Android上')
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openMapByAndroid(arr[1], arr[0], name)
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break;
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case 'ios':
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console.log('运行iOS上')
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openMapByIos(arr[1], arr[0], name)
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break;
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default:
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openMapByDefault(arr[1], arr[0], name)
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console.log('运行在开发者工具上')
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break;
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}
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// #endif
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// #ifndef APP-PLUS
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openMapByDefault(arr[1], arr[0], name)
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// #endif
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}
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}
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124
common/js/map/transformCoordinate.js
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124
common/js/map/transformCoordinate.js
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/**
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* Created by Wandergis on 2015/7/8.
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* 提供了百度坐标（BD09）、国测局坐标（火星坐标，GCJ02）、和WGS84坐标系之间的转换
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*/
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//定义一些常量
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var x_PI = 3.14159265358979324 * 3000.0 / 180.0;
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var PI = 3.1415926535897932384626;
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var a = 6378245.0;
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var ee = 0.00669342162296594323;
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/**
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* 百度坐标系 (BD-09) 与 火星坐标系 (GCJ-02)的转换
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* 即 百度 转 谷歌、高德
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* @param bd_lon
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* @param bd_lat
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* @returns {*[]}
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*/
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function bd09togcj02(bd_lon, bd_lat) {
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var x_pi = 3.14159265358979324 * 3000.0 / 180.0;
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var x = bd_lon - 0.0065;
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var y = bd_lat - 0.006;
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var z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);
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var theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
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var gg_lng = z * Math.cos(theta);
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var gg_lat = z * Math.sin(theta);
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return [gg_lng, gg_lat]
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}
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/**
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* 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换
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* 即谷歌、高德 转 百度
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* @param lng
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* @param lat
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* @returns {*[]}
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*/
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function gcj02tobd09(lng, lat) {
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var z = Math.sqrt(lng * lng + lat * lat) + 0.00002 * Math.sin(lat * x_PI);
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var theta = Math.atan2(lat, lng) + 0.000003 * Math.cos(lng * x_PI);
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var bd_lng = z * Math.cos(theta) + 0.0065;
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var bd_lat = z * Math.sin(theta) + 0.006;
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return [bd_lng, bd_lat]
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}
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/**
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* WGS84转GCj02
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* @param lng
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* @param lat
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* @returns {*[]}
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*/
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function wgs84togcj02(lng, lat) {
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if (out_of_china(lng, lat)) {
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return [lng, lat]
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} else {
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var dlat = transformlat(lng - 105.0, lat - 35.0);
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var dlng = transformlng(lng - 105.0, lat - 35.0);
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var radlat = lat / 180.0 * PI;
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var magic = Math.sin(radlat);
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magic = 1 - ee * magic * magic;
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var sqrtmagic = Math.sqrt(magic);
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dlat = (dlat * 180.0) / ((a * (1 - ee)) / (magic * sqrtmagic) * PI);
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dlng = (dlng * 180.0) / (a / sqrtmagic * Math.cos(radlat) * PI);
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var mglat = lat + dlat;
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var mglng = lng + dlng;
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return [mglng, mglat]
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}
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}
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/**
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* GCJ02 转换为 WGS84
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* @param lng
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* @param lat
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* @returns {*[]}
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*/
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function gcj02towgs84(lng, lat) {
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if (out_of_china(lng, lat)) {
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return [lng, lat]
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} else {
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var dlat = transformlat(lng - 105.0, lat - 35.0);
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var dlng = transformlng(lng - 105.0, lat - 35.0);
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var radlat = lat / 180.0 * PI;
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var magic = Math.sin(radlat);
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magic = 1 - ee * magic * magic;
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var sqrtmagic = Math.sqrt(magic);
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dlat = (dlat * 180.0) / ((a * (1 - ee)) / (magic * sqrtmagic) * PI);
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dlng = (dlng * 180.0) / (a / sqrtmagic * Math.cos(radlat) * PI);
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mglat = lat + dlat;
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mglng = lng + dlng;
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return [lng * 2 - mglng, lat * 2 - mglat]
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}
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}
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function transformlat(lng, lat) {
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var ret = -100.0 + 2.0 * lng + 3.0 * lat + 0.2 * lat * lat + 0.1 * lng * lat + 0.2 * Math.sqrt(Math.abs(lng));
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ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(lat * PI) + 40.0 * Math.sin(lat / 3.0 * PI)) * 2.0 / 3.0;
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ret += (160.0 * Math.sin(lat / 12.0 * PI) + 320 * Math.sin(lat * PI / 30.0)) * 2.0 / 3.0;
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return ret
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}
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function transformlng(lng, lat) {
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var ret = 300.0 + lng + 2.0 * lat + 0.1 * lng * lng + 0.1 * lng * lat + 0.1 * Math.sqrt(Math.abs(lng));
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ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(lng * PI) + 40.0 * Math.sin(lng / 3.0 * PI)) * 2.0 / 3.0;
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ret += (150.0 * Math.sin(lng / 12.0 * PI) + 300.0 * Math.sin(lng / 30.0 * PI)) * 2.0 / 3.0;
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return ret
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}
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/**
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* 判断是否在国内，不在国内则不做偏移
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* @param lng
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* @param lat
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* @returns {boolean}
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*/
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function out_of_china(lng, lat) {
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return (lng < 72.004 || lng > 137.8347) || ((lat < 0.8293 || lat > 55.8271) || false);
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}
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export default {
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bd09togcj02: bd09togcj02, // 百度坐标系 (BD-09) 与 火星坐标系 (GCJ-02)的转换
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gcj02tobd09: gcj02tobd09, // 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换
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wgs84togcj02: wgs84togcj02, //
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gcj02towgs84: gcj02towgs84,
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}
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